Winter Mahjong

Mahjong connect rather than the stacked pyramid: tiles sit on a flat board and a pair clears if the line joining them turns no more than twice. That rule is the entire game, and it makes the board a question about corridors instead of about layers. Some levels slide the remaining tiles to one side after each clear, which reshuffles every route you had planned. Thirty-two levels on a timer, with winter artwork on the tiles.